Steppe Nomads Created Indian Civilization? Impossible

Current theory is that the Indo-European language was spread by a steppe nomadic culture. Yeah, that's the Aryan invasion, migration, tourism, picnic model, isn't it? That's the current theory, the mainstream theory. So apparently, as per this mainstream, the currently accepted mainstream consensus, the Indo-European language was spread by a steppe nomadic culture. How were there so many people living in the steppes during the Neolithic period, right? First of all, what is the Neolithic period? The Neolithic period is the New Stone Age, roughly 10,000 years, roughly 10,000 BC to about 2000 BC, roughly, roughly, okay? I'm sure other people will have different interpretations, but you could say it's 10,000 BC to about 2000 BC. That is the Neolithic period, the New Stone Age. And it is said that this is the time where our ancestors shifted from being nomadic hunter-gatherers to becoming agriculturalists. And because they became agriculturalists, they had to settle down, they had to start domesticating animals, they had to set up permanent settlements in villages and towns and cities eventually. And they developed new technologies like polished stone tools and pottery and weaving, eventually metallurgy. And this is the time when you have the dawn of civilization. That is the Neolithic period, okay? So, the theory is that the Indo-European language was spread during this period by steppe nomads. So, what is the steppe? We know what nomadic people are, people who move from one place to another, they never stay in one place for too long. But what is the steppe? The steppe is the Eurasian steppe. This vast region from, you could say, the Xinjiang part of present-day China, it encompasses the entirety of Central Asia, Kyrgyzstan, Tajikistan, Uzbekistan, Kazakhstan mainly, mainly Kazakhstan. And it also includes Eastern Europe, which is Ukraine, Southern Russia, etc. And it also includes parts of Siberia, it also encompasses Mongolia, actually. Okay? So, that is the Eurasian steppe. Huge region, 8 to 10,000 kilometers wide. That's the region we're talking about. Okay? So, that is the Eurasian steppe. Now, what were the populations like in the known world outside of Africa? At the time, no one knew about, I mean, no one from our perspective, our ancestors' perspective, nobody knew about Australia or the Americas. What were the populations like in Eurasia at this time? So, the total population of Eurasia during the Neolithic until about 2000 BC was about maximum 20 million. So, the Indian subcontinent, you may have had maybe 8 million people that lived in the Indian subcontinent. When it comes to China, you might have had another 8 million people who lived in China. So, there you have 16 million right away. Then west of the Indian subcontinent, you have the Persian plateau region, maybe half a million, maybe 1 million people there. Then you have Anatolia. Okay? Maybe half a million people in Anatolia. If you take the whole of Europe, maybe a couple of million people, maximum 5 million. Okay? The Eurasian steppe, this gigantic vast region that we spoke about just now, maybe half a million people, maximum, probably 200,000 people, maybe 300,000 people. So, the Eurasian steppe had people, but the population densities were incredibly low at the time. And you put all of these population groups together, India, China, Eurasia, Anatolia, Persia, Europe, all of this together, you may have maximum 20 million people, possibly less than that. So, the steppe region had a tremendously low population density. And unlike India or China, where you had settled populations and proper civilizations, maybe 5,000 years ago, unlike India and China, or even Persia, in the steppe region, you had hunter-gatherers, you had nomads, maybe early agriculturalists. So, despite there being civilized populations in India, in China, even Persia, Anatolia, etc., in the steppe regions, you still had nomadic hunter-gatherers who lived there. So, the populations weren't high. The population over the steppe wasn't high at all. Half a million, maybe. Some people may say 1 million. But if you look at the actual area it encompasses, the population density is still incredibly low. So, that was the situation. And then how does a nomadic steppe culture give rise to a high civilization like India? It makes no sense. The culture of nomadic hunter-gatherers, it gives rise to the high civilization of India. How does it make sense? It makes sense apparently to some people.